A sum of money was shared among Mr. Edwards, Mr. Hayles and Dr. Smalling in the ratio 3:5:7. If Dr. Smalling’s share amounts to $350. Calculate the: a. total sum of money to be shared. b. percentage of the total amount that Mr. Hayles received.

niot sure

Step-by-step explanation:

i think the answer is b.

step-by-step explanation:

not 100% sure though.

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.